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CONSTANT J. D'UMERY, OF PARIS, FRANCE, SSIGNOR TO FRANCIS C.

CORMIER, OF NEW YORK, N. Y.

Letters Patent ll'vo. 63,869, lated April 16, 1867; antcclateol April' 10, 1867.

IMPROVED APPARATUS FOR TANNING.

titre dgrhult entre in in tlgrsc tdtrts pglrtsnt mit miiliilig pitt inf tigt amie.

TO ALL WHOM IT MAY- CON CERN:

Be it known that I, CONSTANT JOUFFROY DUMRY, of Paris, France, civil engineer', have'i'nvcnted a new or improved Apparatus for-Extracting from Water or other Liquid the Bodies heid in Solution or Suspension therein; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, making a part of this specification, in which- 'Figure 1 is a front elevation.

Figure 2 is a vertical transverse section, taken in the line z a: of iig. 1.

Figure 3 is a vertical transverse section of the receptacle, in lwhich the foreign matters are precipitated from the liquid. V

Figure 4 is an inverted'plan view of the topor upper portion of the said receptacle.

Similar letters of reference indicate corresponding parts in all the figures.

This invention has for its object the separation from water or other liquids of foreign matters dissolved or held in suspension therein, either for the purpose of purifying. the liquid or for the utilization of such foreign v matters; and it consists in a novel construction of an apparatus, whereby the liquid is heated to a temperature sufficient to solidify the foreign substances suspended or held in solution therein, and thenconducted to a cooling chamber or receptacle in which the said foreign substances are precipitated, the liquid iiowing back into the heating-vessel or boiler, so that a continued circulation of the said liquid is maintained, whereby the complete separation of all the foreign matters contained therein is eifectually insured;

To enable others to understand the construction and operation of my invention, I will proceed to describe it with reference to the drawings.

The invention is represented in the drawings as applied to the purication of water for steam boilers, t0 prevent the formation of scale or incrustations therein. A indicates three horizontal boilers, which are connected by suitable tubes a, and. constitute, in fact, but a single boiler. Underneath this boiler is a suitable furnace, 13.` C represents a separate chamber or receptacle, which is placed outside of the boiler A, and which may be divided horizontally into two parts so that it may be opened when desired, the said parts being tightly joined together when the apparatus is inuse, as represented in the drawing. Dis abent'pipe or tube, the lower end of which passes through the top of the receptacle C, and communicates with theinterior thereof, while the opposite or upper end of the said tube passes through the end of thc uppermostv portion ofthe boiler, and has a funnel, b, formed upon it, the said funnel 6 projecting into the boiler, as shown in fig. 2. E is another curved pipe or tube, the outer or lower end of which passes through the top of theV receptacle O, in the same manner as the lower end of the tube D, while the upper end thereof communicates with the lower part of the boiler A. Projecting downward, and in a vertical position from the inner or under side ofthe top of the receptacle C, are two or more curved or serpentine plates or short partitions, E, while the bottom of the said receptacle is shaped like an inverted con-e, as shown at c, and has formed in it a central opening, o?, the lower end of which communicates with a suitable tube, e, which is furnished with a cock or valve, Passing up through the opening d, and

with its lower end surrounded by a suitable stuihng-box, g, is a vertical stem, z, to the upperl end of. which is.

fixed any desired number of radial agitating'arms or blades, t', the lower edges of which are in' contact with vthe inner surface of the bottom c, as represented in fig. 3. Secured upon the lower end of the stem 7L is a crank, j, by means of which the said stem is rotated'to operate theiagitating arms c', in order to facilitate thc removal from the receptacle C ofthe substances precipitated therein, as will be presently further set forth. The boiler A is filled with water to a height above the upper end of the tube D, and is heated by the tire in the furnace B to a temperature sufficient to solidify the foreign matters contained in the water into solid particles the heated water in the upper part of the boiler passing through the pipe D into the receptacle C. The water in the lower portion of lthis receptacle is comparatively quiet or still, while the heated water from the boiler passes between the curved or serpentine portions F, as shown by the red lines in iig. 3, toward the opening formed by the lower end of the pipe E, as shown by the arrows ,in red lines in figs'. 3 and 4; and inasmuch as the motion of the water in passing between the said partitions is very slow, and as it'is cooled or has its temperature reduced during such passage, the particles of foreign matter contained therein are precipitated or allowed to descend by their own weight vto the bottom c of the said receptacle. The water, after passing vbetween the partitions F, as just set forth, passes into :and through the pipe E, and re-enters the boiler at the lower part thereof, and is again heated, the water thus circulating continually through the boiler A, the pipesAD E, and the receptacle@ and depositing the solid particles of foreign matter suspended therein in the said receptacle, as just herein explained, so that the water is rendered pure and thus prevented from depositing scale or incrustationy within the boiler. The size of the pipes D and E should be proportioned to thc` rapidity with which it is desired to have the water pass through the receptacle C, or au additional number of such pipes may be employed. `When it is desired to remove the deposit oi' foreign mutter from the receptacle C the cool: or valvefis opened and the stein zis turned by means oi' the crank j, thus revolving the agitating arms or blades z', which oauses the sediment or foreign mattei' aforesaid mingled with the water to fion freely through the opening d and tube e. The apparatus may not only bev employed for purifying water Vfor boilers or similar purposes, as just set forth, but may also be used in the'sarne manner for separating useful or desirable substances from their solutions in Water'or other liquids, such substances being precipitated in the receptacle C, and removed therefroin in the same manner as when' the apparatus is'employed in the Vpurification ot' liquids, a-s hereinbefore fuliy set forth.

What I claim as new, and desire to secure by Letters Patent, 1s-

1. The receptacle C, applied outside ot` the boiler or heating-vessel A, and communicating therewith by means of the pipes D E, substantiallyas herein set fortlrfor the purpose specified.

2. The agitating blades or arnis z', arranged within the receptacle C, and in relation with the opening@ and ltube e, Asubstantially as herein set forth for the purpose specified.

3. The serpentine partitions F, arranged in the upper part of the receptacle C, substantially as herein set.

forth for the purpose specified. l

C. J. DUMERY.

Witnesses EDWARD TUcx, D. Eties. 

